Tools/Code & dataQuery String BuilderBuild URL-encoded query parameters from editable key and value rows.Base URL (optional)Leave empty for a query string. Repeated keys and empty values are preserved.Import query from URLKey 1Value 1RemoveAdd parameterGenerated queryCopy resultHow this tool worksBuild parametersAdd rows for keys and values. The output uses the browser's standard URLSearchParams, so spaces and reserved characters are encoded for you.PrivacyParameters remain local to this tab.